AI news report for February 28, 2025:

1. OpenAI has released the GPT-4.5 model, which shows improvements in natural interaction, intent understanding, and emotional intelligence. However, the API cost has surged 30 times to $150/M Token for output.

2. Pika Labs has launched the Pika 2.2 version AI video generation tool, supporting the creation of 10-second 1080p videos and introducing "Pikaframes" frame transition technology to enhance the creative experience and smoothness.

3. Meta has introduced the next-generation research AR glasses, Aria Gen 2, weighing 75 grams and featuring sound differentiation, eye-tracking, and gesture recognition capabilities, with an 8-hour battery life.

4. Google Translate will introduce a "follow-up question" feature, allowing users to obtain translation context, cultural annotations, and grammatical analysis for a more in-depth translation experience.

5. Hugging Face has released the FastRTC open-source library, simplifying the development process for real-time audio and video AI applications with just a few lines of code.

6. Xiaomi has launched the Super XiaoAi Speaker Pro, equipped with "Super XiaoAi," supporting remote car control and other features, priced at 299 yuan, and capable of continuous commands and natural conversation.

7. Microsoft has released the macOS version of Copilot, integrating DALL-E 3 image generation capabilities, and adding "voice" and "deep thinking" features to support language practice.